Mining-machine.



Patented Nov. 20, 191'?.

4 SHEETS-SHEET l.

N. D. LEVIN.

MINING MACHINE.

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Patented Nov. 20, 19V?,

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N. D. LEVIN.

MINING MACHINE.

APPLlcAioN FILED oc.19.1912.

Patented Nov. 20, 1917;.

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N. D. LEVIN.

MINING MACHINE.

APPucATioN FILED ocT. 19. |912.

Patented Nov.. 20, 1917.

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MILS DAVID LJVIN, OIF COLUMBUS, OHIO, ASSIGNOR TO THE JEFFREY MANUFAC-TUBING COMPANY,

OF COLUMBUS, OHIO, A CORPORATION OlE OHIO.

camine-MACHINE.

Specitication of Letters Patent.

Patented Nov. 20, 191V?.

.application led October 19, 1912. Serial No. 726,795.

To all whom t may concern.'

Be it known that I, NILs I).V LEVIN, a citizen of the United States,residing at Columbus, in the county of Franklin and State of Ohio, haveinvented certain new and useful Improvements in Mining-Machines, ofwhich the following is a specification, reference being had therein tothe accompanying drawings. p

This invention relates especially to continuously 'cutting miningmachines of the type especially adapted for use in mines which areworked according to the room and pillar. system, and to trucks for usein combination with such machines for transporting them. its to certainfeatures, however, my invention is not so limited, and may be applied tomachines of other types.

The principal object of the invention is to provide an improvedarrangement of gearing and power transmitting mechanism for driving thecutters, for driving and controlling the ropes or cables by means ofwhich the cutter mechanism or the machine guided, and for driving thetruck upon which the machine may be placed for transportation. Anotherobject is to provide improved means whereby the machine can be reversedfor operation in either direction. Another object is to provide improvedmeans whereby power can be applied to the rope which is normally usedfor retardin the outlet end of the machine. Another o ject is to provide`means whereby the feed cable may be attached at any one of severalelevations tc change the line of pull. Still other objects will beapparent from the following specification and claims.

In the accompanying drawings I have shown one embodiment of myinvention, but it .will beunderstood that many modifications and changesmay be made without de parting from the spirit of the invention as setforth in the claims which are hereto appended.

" In the drawings,

Figure 1 is a plan view of a miningl machine embodying my invention.

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Fig. 2 is a side elevation. Fig. 3 is a longitudinal section of A apart`of'the machine-taken along thelmve l of Fig. 1. p p ig. 4 is a sectiontaken along the line [1 -tof Fig. l.

Fig. 5 is a detail view of the anchor or jack for the feed rope.

Fig. 6 is a vplan view of a truck adapted to support the mining machineand to be driven by it.

Fig. 7 `is a side elevation showing the mining machine on the truck.

Fig. 8 is a diagrammatic view showing `the machine making a transversecut across the face of a room. y

Fig. 9 `is a diagrammatic view showing the machine making a transversecut across the face of a room in the direction opposite to thatindicated in Fig.` 8.

Fig. 10 is a diagrammatic view showing the machine making a sumping cut.Fig. 11 is a diagrammatic view showing the machine being moved acrossmeans of the rear controlling rope.

Fig.,12 is a diagrammatic view showing a modified arrangement of thefeed rope. This viewzgisbtherwise similar to Fig. 8.

Referrn'gto the drawings, A represents as a whole the bed frame of theminin machine. This bed frame, in the embodiment shown, comprisesseveral parts.` One of these parts is the main frame casting. l, whichis secured to and mounted upon a horizontal platform or shoe 2 which isadapted to rest and slide upon the floor of a mine. Thief/shoeconstitutes another part of the bed ffiame, and the motor frame whichwill be hereinafter referred to constitutes a third part.

Projecting from the main frame 1 is the cutter arn173 which may be' ofany of a variety of constructions. As shown vin the drawings `thiscutter arm has a top plate i which is formed integrally with the casting1 and is provided with a central slot 5. Beneath thetop plate 4, andsimilar to it in lsize and -shape, is a bottom plate 6. Between the topand bottom plates there is a spacer block 7 of smaller outline than theplates. The top and bottom plates andthe spacer block are held togetherby suitable bolts or rivets as shown. .It will be noted that the top andbottom plates project inward/beyond the edges of the spacer block at'thecenter thus forming a slot having in itsg'edges grooves in which a block8 can slide.` The purpbse of the block 8 will be beyond the spacer blockthus forming a a room by lill@ sprocket wheel 11.

12 is an electric motor preferably arranged with its armature shaft invertlcal position. The frame or casing of the motor is secured at theforward 'side to the main frame casting 1 and at its lower side to theshoe or platform 2. In this Way, as stated above, the casting 1, themotor frame 12 and the shoe 2 form one rigid bed frame structure.Mounted upon the frame of the motor 12 is a starting and reversin box12a whichy may beof any usual or preferred construction.

At the upper end of the armature shaft of the motor 12 is a pinion 14which meshes with an idler gear 15 journaled upon a suitable pin or studsecured to the motor frame. The gear 15 meshes with a large drive gear16 which is keyed to a vertical drive shaft 17 in a manner to permit theshaft to move vertically. A casing 16al incloses the gears. The shaft 17is provided with a shoulder at' 18 which engages the hub 19 and limitsupward movement of the shaft with respect to the gear wheel.

Downward movement of the shaft is permitted under the control of the nut2O which is threaded on the upper end of the shaft.

The nut 2O is held in vertically xed relationship to the gear wheel bymeans of the ring 21. The space beneath the ring 21 and surrounding then ut may be used as a reservoir for oil for lubricating the shaft bear-1n s.

t22 is a .drive elementfor-the drums which will be described below.Preferably this drive element is a rotatable sleeve having a centralaperture through which the shaft 17 extends. The hub 19 of vthe gearwheel 1'6 is journaled in the central aperture by means ofthe bearingbushing 23, and the lower end of the shaft is journaled in thisaperture/'by means of the bearing bushing 24. Formed on the sleeve 22 atthe' upper end thereof is a horizontal flange or disk 25. At the outeredge of this disk 25 there is provided a spur gear 27 which ispreferably formed as a separate ring secured to the disk.

Positioned below the disk 25- and secured to the main frame casting 1 isa supporting plate or bracket 28. This plate 28 is provided with acentral aperture in which by means of a bearing bushing 29 there isjournaled a hub 3() which is connected by a key 30a to the sleeve 22. Bymeans of this bearing at 29 the upper end of the shaft and theassociated parts are supported.

Secured to the plate 28 and positioned directly beneath the gear ring 27is a similar gear ring 31. The rings 27 and 31 vare of the same size butare provided with different numbers of teeth. For example it may lbeconsidered that the ring 27 as ninety teeth and the ring 31 ninety-oneteeth. 4. 32 is a bearing pin secured at its upper end to the web of thegear 16 and supported at its lower end by means of a stirrup 33 alsosecured to the web of the gear. Rotatably mounted upon the pin 32 '1s apinion 34 of sufficient width to engage the teeth on the 'ring 27 andalso those on the ring 31. It will be observed that on account of thedifference in the numbers of teeth on the gears 27 and 31 the movablegear 27 will, for every revolution of the gear wheel 16, bemoved withrespect to the lxed 'gear 31 through a distance equal to that A collar36 threaded on the sleeve engages Y the lower side of the hub 35 andthe. late 28 engages the upper side of the hu 30.-

The two hubs are in this way held against being moved away from eachother. The

hub 35 is journaled in a bearing aperture of the bottom plate of themain casting 1 by means of a sleeve 37. By means of this bearing at 37the lower ends of the sleeve 22 and of the shaft 17 are supported.

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Formed integrallyk with the upper hub 30 l,

is an outward projecting circular flange 38 which is provided at itsouter edge with a downward projecting annular collar 39. Journaled onthis collar 39 by means of a bearing bushing 40 is the hub 41 of a windling drum 42. Connecting the upper edges of the hub 41 and the drum 42 isa web 45. Extending from the lower edge of the hub 41 is an inwardprojecting plate or web 46, the inner edge of which rests upon a ballbearing 47. This ball bearing is supported upon. the hub 48 of a handwheel 49. This hub 48 has threaded engagement with the sleeve 22. In therecess formed between the flange 38 and the web 46 are mounted the disksof a friction clutch 50. These disks are connected alternately with theweb 46 and the flange 39 in the manner which is well known. It will beclear that by means of the hand wheel 49 the hub 48 can be turned andraised or lowered because of itsy threaded engagement with the sleeve22. As

the hub 48- is raised the web 46 and the drum, 42 are 'raised and thefriction disks of the` clutch 50 are forced Vinto engagement with' mamasrelieved. In this way the drum 42 can be connected with or disconnectedfrom the flange 39, the hub 30, and the sleeve 22.

For resisting the rotation of the drum 42 l provide a brake band 51which is adapted to engage the outer surface of the' hub 41.`

The ends of this brake band 51 are secured to oppositely threaded nuts52, 52, whichengage a similarly threaded shaft shaft is mounted insuitable bearings on the main frame' casting 1. By means of hand wheels54, 54, the shaft 53 can be rotated and the nuts 52, 52 can be movedtoward or away from each other to tighten or loosen the brake band 51.

55 is a vsecond drum 'of considerably less diameter than the drum 42.This drum 55 is journaled on the sleeve 22 by means of the bearingbushing 56. The drum 55 is positioned directly beneath the hub 48 and aball bearing 57v is interposed between the hub and the drum. Between thedrum 55 and the hub 35 before referred to there are located the disks ofa. friction clutch 58. rllhese disks are alternately connected withthe'drum and with the hub in the well known manner. `When the hub 48 isturned in one direction by,means of the hand wheel 49, the disks of theclutch can be forced into engagement with each other, and when the handwheel is turned in the other direction, the pressure between the diskscan be relieved. 1n this way the drum 55 can be con` nected to ordisconnected from the hub and the sleeve 22. lt will be noted that thesame hand wheelA49y and the same central hub 48 controls the twoclutches 50 and 58. `When the hand wheel is turned in one direction theclutch 50 is engaged and the clutch 58 is released. When the hand wheelis turned in the other` direction the clutch 58 is engaged and theclutch 50 is released. rThe two clutches cannot both be engaged at thesame time.

Journaled on the shaft 17 at the lower end thereof is a sprocket wheel59 over which the cutter chain 10 passes. 'llhis sprocket wheel 59 isprovided at its lower edge with clutch teeth 60. r1`he lower end of theshaft 17 is provided with a clutch element 61 having radially extendingteeth adapted to lie between and engage the teeth 60 when the shaft 17is in its uppermost position. The teeth 61 can be disengaged from theteeth 60 by turning the nut 20 by means of asuitable wrench and thuslowering the shaft 17. By lowering the shaft farther the clutch element61..can, when the machine is on a suitable truck, be brought intoengagement with a clutch element onthetruck. A projection 62 on thelower cutterarrn plate 6 supports the sprocket wheel l59 when the shaftis lowered. i

63 is the/ feed rope connected to the drum 55 to be wound thereon. Ifthe machine is to This vof the cable to the frame of the mining mabe fedtoward the left, the rope is wound in the direction indicated in Fig. 1and is passed off from the inner side of the drum toward the left. Theend of the rope can, if desired, be secured to a jack or anchor '70 nearthe left rib of the room in which the machine is to be operated.However, l prefer to pass the feed cable about a suitable pulley at theleft rib and to fasten the end chine. In order that the end of the cablemay be easily fastened to the machine, l secure to it a llshaped button64 which is adapted to be passed into a similarly shaped vertical slot65 at the side of the main part of the casting 1 near its inner end. Twoof these slots 65 are provided, one on each side,

\in order that the machine may be fed in either direction in a manner tobe described. Adjacent each slot and extending into it are a number ofholes 65a each adapted to receive a pin 65h. By means of one or more ofthese pins 65b the button 64 and the end of the cable, may be secured atany desired ele vation. rlhe advantage of this construction will be madeapparent hereinafter.

In Fig. 5 1 have shown one form of pulley mounting whichmay beadvantageously used at the right rib. This comprises a toothed baseplate 66 carrying a cylindrical boss 67 upon which the pulley 68 isjournaled. An annular lip 69 on the boss holds the pulley againstdisplacement. The boss 67 is provided with a .cup or recess 70 in whichcan be placed the lower end of a jack 71. By means of this jack thewhole device can be securely lclamped against the mine floor and heldagainst displacement.

72 is a retarding cable connected to the drum 42 to be wound thereon.Mounted 105 upon transverse horizontal axes at the rear end of themachine are idler sheaves 7 3, 73, positioned with their .upper edges inhorizontal alinement with the drum 42. 74, 74

are other idler sheaves mounted for rota- 11@ tion about horizontallongitudinal axes. Each of the sheaves 74, 74 is positioned to receivea` cable from the corresponding sheave 73 and to guide it across therear of the machine. For feeding toward the left the rope 72 is passedfrom the drum42 over the left hand sheave 73 and under the sheaves 74,74. The end of the cable is suitably secured by means of an anchor orjack at the right hand rib. A

When the machine is to be used in the usual manner for cutting fromright to left. as indicated in Fig. 8, the feed and retarding ropes arearranged in the manner described and the motor 12 is started. From themotor 125 power is transmitted through the gears 14,

v15 and 16 through the shaft 17 to the cutter cham drive sprocket 59. Bymeans of the gears 32, 31 and 27 the .sleeve 22 is rotated slowly in theopposite direction from the 1115 shaft 17. The operator by means of thehand wheel 49 causes the engagement ofthe clutch 58 and thus connectsthe drum 55 with the sleeve 22. The drum 55 winds the- 5 feed rope 68and the machine is thus drawn toward the left, the cutters on the chainbeing drawn into the coal. The rear end of the machine is retarded bymeans of the rope 72, rapid unwinding of this rope 42 10 being preventedby means of the brake 51..

behind the inner end. In case it is desiredfor any reason to morequickly angle the` machine toward the rear, this can be done byreleasing the brake 51 and turning the hand wheel 49 to disengage theclutch 48 and engage the clutch 50. With the clutch 50 engaged, powerwill be transmitted :to

'25 wind the rope 72 and thus positively pull the rear end of themachine backward to ward the right rib.` I It willbe noted that theentire machine is perfectly symmetrical with respect to a centrallongitudinal plane and that the machine is therefore adapted to beoperated in either direction. To adjust the machine for operation fromleft to right, as indicated in Fig. 9, it is simply necessary to reversethe 85 cutters of the cutter chain and to unwind the ropes from thedrums and rewind them in the opposite direction. As each -drum can bereadily controlled by means of its friction clutch, thev unwinding andrewinding can be 40 done by means of power. After unwinding andrewinding, the button 64 on the feed rope 63 is placed in the right.hand slot 65 and the retarding rope 72 is passed over the right handsheave 73.

The adjustable attachment of` the feed rope makes it possible to varytheline of draft on the machine in accordance with the conditions'ofoperation. For inzance, if it is found .that there is a tendency or theforward edge of the shoe 2 to bear too hard against the floorand to digin and catch, the tendency can be overcome by lowering the point ofattachment. If, on the other hand, the conditions of cutting are suchthat kthere is a tendency for the forward edge of the cutter mechanismto work upward, the tendency can be overcome by raising the point ofattachment ofthe feed rope. .By carefully watching the operation of themachine the operator can adjust the feed ropeV tothe most advantageousposition.

While I prefer and have described an ar rangement in which the feed ropeis doubled back on itself and connected with themavchine frame, it willb'luilders'tood that if 75 is passed through its central aperture tosecure it in position. This jack, it will be understood, is adapted toengage the roof or coal face at its upper end and the floor at its lowerend. This block 8 serves as a guide for the cutter arm as it is movedinward. The. feed rope 63 is passed forward 80 over a suitable idlerpulley 76 mounted on the main frame casting 1, and the end of the cableis secured to the jack 75. By winding the feed rope the machine can bedrawn directly inward until the sumping cut is completed. As the line ofpull is central, it will usually be found that no guide for the outerend of the machine is necessary.

For handling the machine and moving it `from point to point about a mineroom, use

can be made of the rope 72. In order that the rope 72 may be passed outfrom the rear end of the machine in any direction, there are providedidler sheaves 77, 77, mounted for rotation about vertical axes. 72 canbe passed between these two sheaves and its end can be connected at anydesired point. The operator, by engaging the clutch 50, can cause therope 72 to be wound, and, in this way, the machine can be hauled in anydirection. As the drum 42 is considerably larger than the drum 55, therate of movement of the machine under the control of the -rope 72 isconsiderably greater than when it is being fed forward by means ofl therope 63. In Fig. l1 I have shown the machine being hauled toward vtheright rib after makinga cut from right to left.

In order that my improved machine may be readily transported from placeto place about a mine, I preferably provide in combination with it atruck such as shown in Figs. 6 and 7. As to the details of this truckthere may be variation but the construction which I deem mostadvantageous is shown in the drawings. This construction is similar tothat shown in my co-pending a plication for mining machinesand trucks,gerial No. 557,432, filed April 25, 1910. 1

The frame of the truck comprises the side rails 78, 78 and cross bars79, 79, 80 and 81, 81. To the side rails are secured bearing boxesA82,82. for the axles 83 and 84 to which are secured the track wheels 85,85,' and 86, 86. Chains 86, 86 are provided for ,connecting the forwardwheels with the rear axles. v The wheels 85, 85 are not keyed di'-rectly to the forward axle. 83, but are rotatably mounted upon shortshaftsl or pins 87, 87, which are secured at their inner,- 1.80

The rope mamas ends to the crank arms 88, 88. lThese crank arms arekeyed tothe ends of the axle 83.. This construction provides, ineffect,anaxle bent at fits two ends and the Wheels 85, 85

. are thus mounted eccentrically with respect tion the mining machinecan be readily moved onto or olf from it, and when the forward end ofthe truck is in its upper position the truck is adapted to be movedalong the track. .Tn moving the machineV onto the truck thev cable 72 ispassed to the rear between the sheaves 77,- 77, and is secured at asuitable point to the rear end of the truck. The operator by `engagingthe clutch 50 can cause the cable to be wound and the machine to bemoved bodily along the truck. Secured to the crank arms 88,

88 are upstanding horns 89, 89 in position to be engaged by pins orrollers 90, 90 on the frame of the mining machine. When these pins 90,90 are forced into engagement with the horns'89, 89 by the continuedmovement of the mining machine, the axle 83 is rotated and the truck israi'sed to horizontal position.

When the mining machine is in proper position upon the truck the clutchelement 61 at the lower end of the main power shaft 17 4is in matingposition over a clutch element 91, which is mounted on 4the truck` framefor rotation about a vertical axis. This clutch element 91 is connectedwith a' drive sprocket'wheel 92, there being preferably interposedbetween the clutch element and the sprocket wheel an intermel di'atedrive plate 93 having grooves 93a and 93l disposed at right angles toeach other and formed-to receive tongues carried by the clutch elementl91 and the sprocket wheelI 92, respectively. The plate 93 'car ries atits center a block 93c which proJects across the grooves 93a and 93b andservesto keep the clutch element, drive plate and sprocket wheel part-incoperative relation to each other. This construe/tion,permitsl theclutch element and the sprocket .wheel to rotate about axes which aresomewhat out of alinement. By lowering the shaft 17 suiliciently bymeans of the nut 20the clutch element 61 can be brought intoengagementwith the clutch element 91 and power thus be transmitted from the miningmachine motor to the truck. At theA rear end of the truck a verticalshaft 94 is provided. This. shaft carries a sprocket wheel in horizontalalinement with the sprocket wheel92 and over these two sprocket wheelsthere passes a drivechain 95. Secured to the shaft 94 is a bevel gear 96which meshes with two other bevel gears 97 and 98 loosely mounted on atransverse shaft 99. By means of suitable clutches controlled by thehand wheel 100 either of the gears 97 or 98 can vbe operativelyconnected with the shaft. At .one end of the shaft 99 is a` sprocketwheel be transmitted from the shaft 94 to drive,

the. shaft 99 in either direction, and from the shaft 99 power can betransmitted to drive the'truck axles. rTherefore by means of the handwheel 100 an operator can cause the truck to be driven in eitherdirection as desired.

Preferably I provide at the rear of the truck a cable reel 104 forwinding and unwinding an electric cable 105. This reel is driven bymeans of a rope belt 106, which passes over a sheave 107 on the powershaft 99. It will be clear that the direction of rotation of the reel isreversed whenever the direction of movement of the truck is reversed.Current is transmitted from the cable and the reel to the mining machineymotor, by means of an intermediate conduc- -tor cable 108. T do notherein claim the reel do T claim herein the truckvin combination withthe. mining machine broadly as lthat .constitutes the subject-matter ofmy pending application for mining machines and trucks, Serial 14910.

What 1 claim is 1. 1n a mining machine, the combination of a bed frame,a cutter chain, a support for the vcutter chain mounted on the bed frameand serving to guide the chain in a horizontal path, a sprocket wheelfor driving the cutterv chain, a clutch element on the sprocket wheel, avertical drive shaft in axial alinement with the sprocket wheel andextending upward to the top of the machine, a motor connected with theshaft, a clutch element onthe lower end of the shaft, and a device atthe upper end of the shaft for moving it vertically to bring the clutchelement thereon into or out of enga ement with the clutch element on thesproc et wheel.

`2.` In a mining machine, the combination No. 557,432, filed April -25,

ila

of a bed frame, a cutter chain, a support for the cutter chain mountedon the bed frame and serving to guide the chain in a horizontal path, asprocket wheel for driving the cutter chain, a clutch element on thevsprocket wheel, a vertical drive shaft in axial 'alinement with` thesprocket wheel' and extending upward to the top of the ma7 chine, amotor connected. with the shaft, a clutch element on the lower end ofthe shaft, a device at the upper end ofthe shaft for moving itvertically to bring the. clutch'A element thereon into or out ofengagement cured at a fixed point to cause the bodily v movement of thecutter chain and support as the drum is rotated.

3.-In' a mining machine, the combination of a bed frame, a cutter chain,'a supportfor the cutterchain mounted on the bed frame and serving toguide'the chain in a horizontal path, a sprocket wheel for driv ing thecutter chain, a vertical drive shaft connected with the sprocket wheelin alinement therewith, a motor connected-withthe dr.ive'sha;tt,.arotatable drum mounted con# centrically with the drive shaft, mechanismfor transmitting the power of the motor to rotate the drum, and a ropeengaging the drum and adapted to haveits end secured a't a fixed lpointtocause the bodily movement ofthe cutter chain and support as the drumis rotated.

4. In a mining machine, the combination of a bed frame, a cutter chain,a support for the .cutter chain mounted on the bed frame and servingtoAguide the chain in a horizontal path, a sprocket wheel for ldriving thecutter chain, a vertical drive shaft connected with the sprocket wheelin alinement therewith,y a motor connected'with the drive shaft, ytwoy`rotatable drums mounted concentrically with the drive shaft, mechanismfor transmitting the power of the motor toI rotate one ofthe drums, arope engaging the said drum and adapted to have lts endsccured to afixed point to cause the movement of the cutter chain and support as thedrum is'rotated, a rope ,engagingthe other drlm and adapted to have 'itsend secured at a xed point, and means connected with the said other drumfor tensioning the said rope. 5. yIn a mining machine, the combinationof a bed frame, a cutter chain, support for the cutter chain -mounted onthe bed"l frame and serving to guide the chain in a horizontal path,asprocket wheel for driving the cutter chain, a motor connected with thesprocket wheel, a 'vertical drive element with respect to4 the driveelement, and a rope engaging theI drum and' adapted to have its endsecured at -a fixed point to cause the bodily movement l of the cutter achain and support as the drum is rotated.

6. In a mining machine, the combination of a bed frame, a cutter chain,a support for t-he cutter chain mounted on the bed frame and serving toguide the chainlin a horizontal path, a sprocket wheel for driving thecutter chain, a motor connectedfwith the sprocket wheel, a drive`element connected with the motor, two rotatable drums mountedconcent'rically with the drive element, a hand-wheel between the twodrums having threaded engagement with the driv-A ing element, twoclutches connected with the hand wheel to becontrolled by its rotationwith respect to the drive element, one clutch serving to connect onedrum with the-drive element and the other clutch serving to connect theother drum with the drive element,

and two ropes respectively engaging the drums andadapted to have theirends secured at fixedV points whereby force can be applied tothe cutterchain support/.through elth'er, rope when the corresponding drum isrotated. v

' 7. In a mining machine, the combination of a movable 4bed frame, a,horizontally projecting cutter arm rigid withthe bed frame, a cutterchain supported on andguided V.by the cutter arm, a sprocket wheelengaging the cutter chain to drive it, a vertical drive shaft connectedto the sprocket wheel in axial alinement therewith, a motor connectedwith the drive shaft, a rotatableV winding drum mounted concentricallywith the drive shaft, mechanism for transmitting the power of the-motorto rotate the drum, and a Ifeedv rope engaging the drum andadaptedto'lextend to1 a. fixed point external to the machine to cause bodilymovement of the machine as Athe drum is rotated.

8'. In a mining machine, the combination of a movable bed frame, ahorizontally projecting cutter arm rigid with the bed frame,

a cutter chain supported on and guided by the cutter arm, a 'sprocketwheel engaging asl 1,243,422 l i n 9. ln a mining machine, thecombination.

' of a movable bed frame, a horizontally projecting cutter arm rigidwith the bed frame, a cutter chain supported on and guided by the cutterarm, a sprocket wheel engaging the cutter chain to drive it, a verticaldrive sha-ft connected to the sprocket wheel in axial alinementtherewith, a motor connected with the drive shaft, a rotatable sleevewithin which the drive shaft is journaled, meclr.

anism for transmitting the power ,of the motor to rotate the sleeve at aspeed different from that of thesh-aft, a rotatable winding drum mountedconcentrically with the shaft i and the sleeve, a manually controllableclutch between the sleeve and the drum, and a feed rope engaging thedrum and adapted to extend to a fixed point external to the machine tocause bodily movement ofthe machine as the drum is rotated.

10. ln a mining machine, the combination of a movable bed frame, ahorizontally projecting cutter arm rigid with the bed frame, a cutterchain supported on and guided by the cutter arm, a sprocket wheelengaging the cutter chain tol drive it, a vertical drive shaft connectedto the sprocket Iwheel inl axial alinement therewith, a motor connectedwith the drlve shaft, means comprising a draft rope acting on the, innerpart of the bed frame to advance the machine laterally along the face ofthe coal, a rotatable drum mounted concentrically with the drive shaft,a brake for resisting the rotation of the drum, and a rope engaging thedrum and adapted to extend rearward from the outer end of themachine toa fixed abut-ment.

`11. ln a mining machine, the combination of a movable bed frame, ahorizontally projecting cutter arm rigid with the bed frame, a cutterchain supported on and guided by the cutter arm, a sprocket wheelengaging the cutter chain to drive it, a vertical drive shaft connectedto the sprocket. wheel in axial alinement therewith, a motor connectedwith the drive shaft, means comprising a draft rope acting on the innerpart of the bed frame ,to advance the machine along the face of thecoa-l, a rotatable drum mounted concentrically with the drive shaft, areleasable brake for resisting the rotation. of the drum, mechanismcomprising a clutch for transmitting the power of the motor to rotatethe drum, and a rope engaging the drum and adapted to extend rearwardfrom the outer end of the machine to a fixed abutment, whereby movementof the machine can be resisted when the brak-e is applied and wherebythe machine can be moved when the clutch is engaged.

12. ln a mining machine, the combination of a movable bed frame, ahorizontally projecting cutter arm rigid with the bed frame.y a cutterchain supported on-and guided yby the cutter arm, a sprocket wheelengaging the cutter chain to drive it, a motor counected with thesprocket wheel, two drums mounted n the frame for rotation about thesame axis, mechanism for transmitting the power of the motor to-rotateone drum, a feell rope engaging the drum and adapted to exten d toafixed point external to the machine to ca use bodily movement ofthemachine as the drum is rotated, a brake for resisting' the rotatioaof the other drum, and a retarding rope en gaging the said other drumand adapted to extend to a fixed point external to the machine, wherebythe movement of the machine can be resisted.

13. ln a mining machine, the combination of a movable bed frame, ahorizontally projecting cutter arm rigid with the bed frame, a cutterchain supported and guided b v the cutter arm, a sprocket wheel engagingthe cutter chain to drive it, a motor connected with the sprocket wheel,two drums mounted on the frame for rotation about the same axis,mechanism comprising manually controllable clutches for transmitting thebe bodily moved as the said drum'is rotated,

a'. releasable brake for resisting the rotation of the other drum, and arope engaging the said other drum and `adapted to extend to a fixedpoint external to the machine, where by the machine can be moved whenthe drum is rotated and whereby movement of the machine can be resistedwhen the brake is applied. I

14. ln a mining machine, the combination of aA movable bed frame, ahorizontall)T projecting cutter arm rigid with the bed frame, a cutterchain supported on and guided by the cutter arm, a sprocket wheel bymeans of which the cutter chain is driven, a vertical drive shaftconnected to the sprocket wheel in axial ali nement therewith, a motorconnected with the drive shaft, two rotatable drums mountedconcentrically with the drive shaft, mechanism for transmitting thepower of the motor to rotate one drum. a feed rope engaging the drum andadapted to extend to a fixed point external to the machine to causebodily movement of the machine as'the drum is rotated, a brake forresisting the rotation of the other drum, and a retarding rope engagingthe said other drum and adapted to extend to a fixed point external tothe machine, whereby movement of the `machine can be resisted.

titl

, tion of a -movable bed-frame, a horizontally projecting cutter armrigid .with the bed frame, Ia cutter chain supported on and lguided bythe cutter arm, a sprocket wheel by means of which the cutter chain isdriven, a vertical drive shaft connected to the sprocket wheel in axialalinement therewith, a motor connected,r with the drive shaft, two

rotatable winding drums mounted concentrically Vwith the drive shaft,mechanism for transmitting the power of the motor to rotate either'ofthe drums, a feed rope engaging one drum and adapted to extend to afixed pointfexternal .to the the nachine can be bodily moved as the saiddrum is rotated, a releasable brake for resisting the rotation of theother drum, a rope engaging the said other drum and adapted to extendIto a fixed point external to the machine, whereby the machine can bemoved .when the drum is rotated and whereby the'movement of the machinecan be resisted when the brake is applied.

16. In a mining machine, the combination of a movable bed frame, ahorizontally projecting cutter arm rigid with the bed frame, a cutterchain supported on and guided by the cutter arm, a sprocket wheel bymeans of which the cutter chain is driven, a motor connected with thesprocket wheel, two ro ',tatable drums mounted` for rotation about thesame axis, the drums being of' different diameters, mechanism .fortransmitting the power of the motor to rotate either the smaller drum ataI definite angular speed or the larger drum at. the Vsame angularspeed,

a brake 'for resisting the rotation of the larger drum, a -feed -ropeengaging fthe smaller drum and adapted to extend to ka fixed pointexternal tothe machine to cause bodily movement of the machine as'thedrum -is rotated, and a' rope engaging the larger drum and adapted toextend to a point external to the machine, whereby thev machine can bemoved when the drum is rotated and whereby movement of the machine canbe vresisted when the brake is applied.

17. In a mining machine, the combination of a movable bed frame, ahorizontally projecting cutter arm rigid with the bed frame, a cutterchain supported on andguided by the cutter arm,

of which the cutter chain is driven, a motor vconnected with thesprocket wheel, a rotatable drive element connected with the nio tor,two rotatable drums mounted for rotation about the axis of the driveelement, the drums being of dierent diameters, clutch mechanism forconnecting either of the drums with the drive element for rotationsynchronously therewith, a releasable brake for resisting the rotationof the larger drum, a feed rope engaging the smaller drumf and adaptedto extend to a fixed point external machine whereby` a sprocket wheel by-means` to the machine to cause bodily movement of the machine as thedrum is rotated, and a rope engaging the larger drum and ada ted toextend to a point external to the mac in'e whereby the machine can bemoved when the drum is rotated and whereby movement-,of the machine canbe resisted when the brake is applied.

18. In a mining machine, the combina-y tionof a movable bed frame, ahorizontally projecting cutter arm rigid with the jbed frame, a cutterchain supported on and guided by the cutter arm, a sprocket wheel by,means of which the cutter chain is driven, a motor connected with thesprocket wheel, a rotatable drive element connected with the motor, arotatable drum mounted for rotation about the axis of the drive element,a hand-wheel adjacent the drum and having threaded engagement with thedrive element, a clutch for connecting the'drum with the drive element,the clutch being controlled by the movement of the ha'nd wheel withrespect to the drive element, and a rope engaging the drum and adaptedto extend to a fixed point to cause bodily so. j

movement of the machine as the drum is l jecting cutter arm rigid withthe bed frame,

a cutter chain supported on and guided by the cutter arm, -a sprocketwheel by means A of which the cutter chain is driven,l a motor connectedwith the sprocket wheel, a rotatable driveelement connected with themotor, two rotatable drums mounted 'for rotay tion about the axis ofathedrive element, a,

hand-wheel between the two drums having 105 threaded engagement with thedrive element, two clutches connected with the hand wheel to becontrolled by its rotation with respect to the drive element, one clutchserving to connect one drum with the drive element and the other servingto connect the other drum with the drive element, a feed .rope engagingone drum and adapted to extend 'to a vfixed point external to themachineto cause bodily movement of the machine as the drum is rotated, areleasable brake `for resisting the rotation of the other drum,aropeengaging the said other drum and adapted to extend to a pointexternal' to the machine whereby the machine can bel moved when the drumis rotated and whereby movement of the machine can be resisted when thebrake is applied.

.20. Ina mining machine, the combination of a movable bed frame, ahorizontally nrojecting cutter arm rigid with the bed frame, a cutterchain supported on and guided by4v the cutter arm, a sprocket wheel bymeans of which the cutter chain is driven, a clutch' element on thesprocket wheel, a motor,a f

vertical drive shaft connected with the momaratea tor and mounted inaxial alinement with the sprocket wheel, a clutch velement on the shaft.a manually operable device for moving the shaft vertically to bring theclutch element thereon into or out of engagement with the clutch elementon the sprocket wheel, a rotatable drum mounted concentrically Vwith thedrive Y shaft and fixed against movement vertically, mechanism fortransmitting the power of the motor to rotate the drum, and a feed ropeengagin the drum and adapted to extend to a x(fixed point external tothe machine to cause bodily movement of the machine as the drum isrotated.

21. In a mining machinefthe combination of a movable bed frame, ahorizontally projecting cutter arm rigid with the bed frame, acutterchain supported on and guided by the cutter arm, a sprocket wheelby means of which the cutter chain is driven, a clutch element on thesprocket wheel, a motor, a vertical drive shaft connected with the motorand mounted in axial alinement With the sprocket wheel, aclutchelementon the.

shaft, a manually operable device for moving the shaft vertically tobring the clutch element into or out of engagement With the clutchelement on the sprocket wheel, two rotatable drums mountedconcentrically with the drive shaft and fixed against movementvertically, mechanism for transmitting the power of the motor to rotateone drum, a

feed ropeengagingthe drum and adapted to extend to a lixed `pointexternal to the machine vvtohcause, bodily movement 0f the machine asthe drum is rotated, a Abrake for resistingthe rotation of the otherdrum, and

a retarding rope engaging the said other drumand adapted to extend ,to aIixjed point external to the machine, whereby movement of the machinecan bejresisted. y y y 22. In a mining machine, the combination of avIidvable bed frame, "a horizontal cutting apparatus projecting from theinner end .of the.- ed frame, propelling mechanism comprising a Windingdrum and afeed rope having' one end ixedly attached to` vsaid Winding'drum andadapted l'to be extended either toward the, right orvtoward theleft to exert a propelling draft in eitherofsaid directions on the innerpart of the bedlfr'aln'e, a motor for driving the cuttiny apparatus andthe said winding drum, an Vmeans for guidingthe outer end of theumachinecomprising a `winding drum, a; rope having one end ixedly attached tosaid drum means for retardin the last said drum while under the tensionrom the rope affixed thereto, and a plurality of guide sheaves on thebed lframe arranged so that the last named rope canb'e carried off fromits winding` drum either-toward the left or toward the right to a fixedabutment.

23. In a mining, machine, the combination of a movable bed ffame, ahorizontally projecting cutter arm rigid with the bed frame, a cutterchain supported on and guided by the cutter arm, a sprocket wheel by.means of which the cutter chain is driven, a vertical drife shaft havingits axis in the central longitudinal plane of the machine and connectedat its lower end with lthe sprocket wheel, a motor connected With theshaft, two rotatable drums mounted concentrically With the shaft, meansfor transmitting the power of the motor to one drum to drive it ineither direction in accordance with the direction of rotation of themotor, a feed rope connected with the drum to be Wound thereon in eitherdirection according to the desired direction of machine movement, theend of the rope being adapted to extend to a fixed point on either sideof the machine whereby the machine can be bodily moved toward the rightor left as the drum is rotated, a brake for resisting the rotation ofthe other drum in either direction. and a fili -retarding rope connectedwith the said other drum to be Wound thereon in either ldirectionaccording to the desired direction of machine movement, the end of therope being adapted to extend to a fixed point on either side of themachine whereby movement of the machine toward the right or left can be`ya5 resisted. Y Y

24. In a mining machine, the combination of a movable bed frame, ahorizontally projecting cutter arm rigid dwith bed frame, a cutter chainsupported on and 'guided by the Iwo cutter arm, a sprocket Wheel bymeans of v which the cutter chain is driven, a motor connected with thesprocket Wheel, a rotatable drum mounted on the frame, mechanism fortransmitting the Ypower of the mow tor to' rotate the drum, a ropeconnected at one end With the drum toy be Woundthereon, a pulley adaptedto be engaged by the rope between its ends and to be secured in place ata point external to the machine, and No means for securing the otherIend of the rope to the bed frame at any one of a plurality ofelevations. y Y t l 25. In a mining machine, the combination of amovable bed frame, a horizontally pro- Ma jecting cutter arm rigid withthe bed frame, a cutter chain supported on and guided by the cutter arm,a sprocket Wheel by means of Which the cutter chain is driven, a motorconnected with the sprocket wheel, a rotatala@ 4ble drum mounted lon theframe, mechanism V,aus

machine and on either side thereof according to the desired ,directionof machine movement, and means for securing the other end of the rope tothe bed frame at either side thereof and at any one of a plurality ofelevations.

26. In a mining machine, the combination of a movable bed frame, ahorizontally projecting cutter arm rigid with the bed frame and providedwith a central longitu# dinal slot, a cutter chain supported on andguided by the cutter arm, a sprocket wheel for driving the cutter chain,a motor connected with the sprocket wheel, a guide block adapted torslidably engage the slot in' the cutter arm, a jack for securing theguide block against movement, a rotatable drum on the bed frameconnected to be driven by the motor, a rope connected with the drum t'obe Wound thereon, means for connecting the end of the rope with the jackand block at a point in the central longitudinal plane of the machine,whereby the machine as a whole may be moved longitudinally inward tomake a sumping cut.

27. In a mining machine, the combination of a movable bed frame, ahorizontally projecting cutter arm rigid with the bed frame and providedwith a central longitudinal slot, a cutter chain supported on and guidedby the cutter arm, a sprocket wheelA for driving the cutter chain, amotor connected with the sprocket wheel, a guide block adapted toslidably engage the slot in the `cutter arm, va jack for securing theguide block against movement, a rotatable drum on the bed frameconnected to be Vdriven by the motor, a rope connected with the drum tobe wound thereon, means for guiding the rope to cause il to extend fromthe bed frame substantially in the central longitudinal plane of thefnachineand means for connecting the end of the rope with the jack andblock at a point in the central longitudinal plane of the machine,whereby `the machine as a whole may be moved longitudinally inward tomake a sumping cut.

28. In a mining apparatus, the combination with a mining machinebedframe, cutting apparatus carried. thereby, av motor on.

the bed frame for driving the cutting apparatus, a vertical drive shafton the mining Y machine, a clutch element at the lower end of the driveshaft, and a manually operable device at the upper end of the shaft flormoving the shaft and the clutch element vertically with respect to thebed frame, of a wheeled truck upon which the mining machine can besupported, and a clutch element on the truck connected with the wheelsthereof, the said clutch element being in position to be engaged by theclutch element on the mining machine when the machine is in place on thetruck.

29. In a mining apparatus, the combina-- tion of a mining machine bedframe, a cuttionengaging the clutch Aelementl on the sprocket wheel, awheeled truck upon which the mining machine can be supported, and aclutch element on the truck connected with the wheels thereof, the saidclutch element being in position to be engaged by the clutch element onthe mining machine when the machine is in place on the truck.

30. In amining-apparatus, the combination of a mining machine bed frame,a'horizontally projecting cutter arm rigid with the bed frame, a cutterchain supported on and guided yby the cutter arm, a sprocket wheel bylmeans of which the cutter chain is driven, a clutch element on thesprocket wheel, a vertically movable shaft on which the sprocket wheelis journaled, a clutch element on the lower end of the shaft adapted toengage the clutch element on the sprocket wheel, a motor connected withthe shaft, a device, at the upper end of the shaft -for movin itvertically to bring the clutch element t ereon into or out of engagementwith the clutch `element on the sprocket wheel, a wheeled truck uponwhich the mining machine can be supported, and a clutch element on thetruck connected withi the wheels thereof, the said clutch element beingin po-.

sition to be engaged by the said clutch element o n the shaft when themining machine is in place on the truck., f

31. In a miningI apparatus, the combination of a mining machine frame, ahorizontally projecting cutter arm rigid with the bed frame, a cutterchain supported on and guided by the cutter arII1'-,'.a.sprocket.wheel.

by means of which the cutter chain is driven, a motor connected with thesprocket wheel,

a drum connected with the motor through a j -which the machine will bedrawn when the Lam/tez second drum is rotated to wind its rope, and a.friction brake adapted to resist the unwinding of the second rope fromthe second mentioned drum, all as and for the purposes set forth.

32. In a mining machine, the combination of a bed frame, a cutter chain,a support for the cutter chain mounted on the bed frame andserving toguide the chain in a horizontal path. a clutch elementen the sprocketwheel, a verticall drive shaft in axial alinement with the sprocketwheel and extending upward to the top of the machine, a lnotor connectedto the shaft, a clutch element on the lower end of the shaft, and adevice for moving the shaft axially to bring the clutch element thereoninto or out of engagement with the clutch element on the sprocket wheel.

33. In a mining machine, the combination of a bed frame, a cutter chain,asupport for the cutter chain mounted on the bed yframe and serving toguidethe chain in a horizontal path, a sprocket wheel for driving thecutter chain, a clutch element onthe sprocket wheel, a verticaldriveshaft in axialalinemen't with the sprocket wheel and extendingupward to the topl of the machine, a. motor connected with the shaft, a4clutch element on the lowerend o f theshaft, a device for moving the,shaft axially to bring the clutch element thereon into or out ofengaget ment with the clutch elementen the sprocket wheel, a rotatabledrum mounted conc-entrically with the drive shaft and fixed againstrelative axial movement, V,mechanism for transmitting the power of themotory to ro-l tate the drum, and a rope engaging the drum andadaptedrto have .its end secured at a fixed point to ycause thebodilymovement of the cutter chain and support as the drum is rotated. v-

34. In a mining machine,- the *combination of a .bed frame, a cutterlchain, a sup,- port for, the cutter chain mounted on the bed frame andserving .toguid'e the Vchainpin a horizontal path,y a sprocket wheel fordriving the cutter chain, aj vertical driveshaft in alinement therewith,a disengageable clutchA between the driveshaft and the 'sprocketwheeh amotor connected with the driveishaft a man@ ,drum mounted @0n- Centiallywith, the drive Shaft iflhfiism ,feixtrasrhttg th rever Qf the .meter t0rotate the drum, and a :ropeengagingthe diuimefld adapted, t0, :haveitsfed `secured ata ixedpoint4 to causethe bodily movement of the cutterchain and support as the r drum isgrotated. j y3511i a` mining machine,the combination of amovable bedframe, cutting apparatusprojecting fromthevinnerendof the bed frame, Winding drum rotatably mounted 0n the bedframe, a draft ropehinting one end connected to said drum and Vadaptedto extend along the face of the coal to exert a forward draft on theinner part of the bed frame, means for adjusting the line of draft ofsaid rope on the machine upward and downward, a motor on the bed framefor driving the cutting apparatus and the winding drum, and. means forapplying a retard..- ing force to the outer part of the bed framel 3G.In a mining machine, the combination of a movable bed frame, a 'cutterbar having a longitudinal slot rigid with the bed frame and projectingfrom the inner end thereof, al cutter chain supported on and guidedbythe cutter bar, an apertured guide block slidablyvmounted in the slot ofthe cutter bar, a jack adapted to pass through the aperture of the guideblock and engage the -ioor of the mine and roof at points in thelongitudinal vertical plane of the cutting apparatus, a draft rope,rotary mechanismen the bed frame cooperating with the draft rope tocreate a tension therein, said rope being adapted to be carried inwardfrom the bed frame to a fixed abutment so that its tension will tend toadvance the machine longitudinally, and a motor on the bed frame fordriving the cutter chain and the said rotary mechanism.

37. In a mining machine, the combination ofa movable bedframe, a cutter`bar rigid with the bedframe and projecting from the inner end thereof, asumpingguide device adapted to slidablyengage the cutter bar and beiixedin position while the cutter bar and bed frame" advance longitudinallyinto the coal, Aandmeans for applying aforce to 'the machine in thecentral longitudinal plane thereof to force it'as an entiretylongitudinally toward the face ofthe coal. j

.38., In a miningrmachine, the combination of a movable bed frame, ahorizontallyprojecting cutterarm rigid lwith the bed frame, a CutterChailupported entend guided by the cutter arm, 4afs'procket4 wheelengaging the cutter chainI` to drive it, means foradvancing the machinelaterally along'the face of the -coal 'comprisinga wndingdrum and a4draft ropeixedly.; fastened thereto and adapted to extend along theface of the coal and `exert a forward draft on the innerend' of thebedframe, mea-ns adapted to retard theouter end of the bed frame comprisinga frictionally controlled. Wirjding'drumand a `'rope fixedly, fastenedthereto and adapted to extend rearward j from ,the Outer end 0f themachineto: a Vfixed abutment, a motor, dPiVUgOIHiGCOnS. adapted@ causethe power of :the motor to` actuate, the cutter chain andA said windingdrums, and means for rendering inoperative the driving connectionsvbetween lthe motor and the cutter chain, and between the lmotorand thefeeding drum, whereby theretarding drum and rope can bedrivenindependently of the cutter chain and of the feeding drum to move themachine bodily over the mine ioor when the cutter chain is idle.

39. In a mining machine, the combination of a bed frame, cuttingapparatus projecting from the inner end of the bedframe, a winding drummounted on the bed frame, a feed cable having one end secured to saidvwinding drum and adapted to exert a forward draft on the inner part ofthe bed frame to propelthe machine along the face of the coal, a secondwinding drum mounted on the bed frame, a retarding cable having one ofits ends attached to the last named winding drum and being adapted andarranged to extend rearward lfrom themachine to an anchor or the likeand exert a retarding .draft on the outer part of the bed frame, a

motor on the bed frame, driving connections between the motor and thecutting apparatus, driving connections comprising a disengageable clutchbetween the motor and the first named winding drum, and drivingconnections between the motorand the retarding cable drum rotating in adirection -to wind up the retarding cable, said ldevices comprisingadjustable yieldable friction parts adapted when tightened to causerotation of the drum in the direction to wind up the retarding cable andwhen loosened to permit rotation of the drum in the opposite directionwith various degrees of frictional resistance.

40. In a mining machine, the combination of a bed frame, cuttingapparatus projecting from the inner end of the bed frame, a poweractuated cable arranged to exert a forward vdraft on the inner part ofthe bed frame to propel the machine along the face ofy the coal, aretarding cable arranged to exert a rearward draft on the outer part ofthe bed frame, a winding drum on the bed frameto which one end of theretarding cable is attached, disconnectible power actuated drivingdevices for the said drum rotating in a direction to wind up theretarding cable, and friction devices adaptedto resist the rotation ofthe drum in the opposite direction when the said driving devices are notin effective operation.

4.1. In a mining machine, the combination of a bed frame, cuttingapparatus projecting from the inner end of the bed frame, a winding drummounted on the bed frame, a feed cable having one end connected to thewinding drum and arranged to exert a forward draft on'the inner part ofthe bed frame to propel the machine along the face of the coal, a secondwinding drum mounted on the bed frame, a retarding cable having' one endsecured to the winding drum and being adapted to extend rearward fromthe machine to an4 anchor or the like and exert a retarding draft on theouterpart of the bed frame, a motor on the bed frame, gearing betweenthe motor and the first named winding drum adapted to drive said rum ata relatively slowspeed, and gearin between the motor and the retardingcable drum adapted to drive the latter at a relatively fast speed, thelast lnamed gearing comprising a manually operable friction clutch bywhich the rotation of the retarding drum can be controlled at will.

42. In a mining machine, the combination of a bed frame, a horizontalcutting apparatus projecting from the inner end of the bed frame,propelling mechanism comprising a winding drum and a feed rope connectedto said drum and arranged to extend forward to exert a propelling drafton the inner part of the bed frame, guiding means for the machinecomprising a frictionally controlled winding drum and a rope connectedto said drum and arranged to'eXtend rearward to exert a retarding drafton the outer part of the bed frame, a motor on the bed frame, drivingconnections between the motor and cutting apparatus, and two trains ofgearing adapted to transmit power of the motor to the winding drums,respectively, and comprising two manually controlled coaXially arrangedfriction clutches, one adapted to transmit power to the propelling drumand the other to the guiding drum. 1

In testimony whereof I affix my signature, in presence of twowitnesses.`

NILS DAVID LEVIN.

Witnesses:

DUDLEY T. FISHER, G. B. NoRRIs.

